✦ LIBER ✦
Critical point in finite density lattice QCD by canonical approach
✍ Scribed by Shinji Ejiri
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 194 KB
- Volume
- 830
- Category
- Article
- ISSN
- 0375-9474
No coin nor oath required. For personal study only.
✦ Synopsis
We propose a method to find the QCD critical point at finite density calculating the canonical partition function Z C (T, N) by Monte-Carlo simulations of lattice QCD, and analyze data obtained by a simulation with two-flavor p4-improved staggered quarks with pion mass m π ≈ 770MeV. It is found that the shape of an effective potential changes gradually as the temperature decreases and a first order phase transition appears in the low temperature and high density region. This result strongly suggests the existence of the critical point in the (T, μ q ) phase diagram.